Cisco ASR 5000 Series Administration Manual page 46

▀ Terminology
Figure 9.
To
A A A (s )
To
H N B (s)
C o n te xt ( C tx.)
In te rfa ce
S e rvice o r
C o n fig u ra tio n ( C fg.)
The source context used to service a subscriber session is the same as the context in which the HNB-GW service is
configured. Each HNB-GW service is bound to an IP address in a source context. The HNBs select which IP address to
use, typically by using DNS. Once a UE has established a bearer context with an HNB-GW, the HNBs continue to use
the same context as the subscriber anchored to that HNB-GW.
The destination contexts used to service a subscriber session to connect with CN.
The system determines the configuration used in destination context based on the parameter contained within the
information received from HNB and also the configuration in HNB-GW service.
The AAA context or AAA configuration in source context uses that context for subscriber authentication.
▄ Cisco ASR 5000 Series 3G Home NodeB Gateway Administration Guide
Service, Interface, and Context Relationship Within the System
S o u rce
C tx .
A A A
S e G W C fg .
H N B - G W
S e rvice s
Iu h
D e st . C tx.
Iu- C S
C S
C fg .
Iu- F le x
.
Iu- P S
Iu -F le x
P S
G n
C fg .
G i
H N B -G W /S e G W
C o n fig u ra tio n
Understanding the Service Operation
To
M S C
To
M S C (s)
To S G S N
To S G S N (s )
To G G S N
To
P D N /In te rn e t
OL-22991-01